WCF Callback is not being executed. Timeout issue?

Question

So I have a client server working with netNamedPipes with WCF on C#.

When I set the callbacks to be OneWay = true , they work, but if I try to make the callback to return a value, they stop working the value is not returned to the server, but the client callback function is called.

Error:

SOURCE: mscorlib TARGET: Void HandleReturnMessage(System.Runtime.Remoting.Messaging.IMessage, System.Runtime.Remoting.Messaging.IMessage) MESSAGE: Object reference not set to an instance of an object.

Why is this happening? Can be some timeout issue? How can I make this timeout timer bigger on code?(no config file).

Thank you

EDIT: What I do is: My client calls the server, I server method called saves the callback channel and when I need to do the callback (out of that method/function, in other function that does not deppend on that one) I do the callback.

Answer 1

Found the issue. Before the callback, I had a value set to false which was killing the thread and closing the host so the callback was unable to be done.